Improvement in milk-coolers



UNITED FRANCIS X.J IANAIIAN, OF UTIOA, Nl l lV YORK.

IMPROVEMENT IN MILK-COOLER S.

Specification forming part of Letters Patent No. 206,340, dated July 23,1878; application filed July 6, 1878.

To all whom it may concern Be it known that I, FRANois X. MANAHAN, ofUtica, in the State of New York, have invented a new and valuableImprovement in Milk-Coolin g Apparatus; and I do hereby declare thatthefollowin g is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure l of the drawings is a representation of a longitudinal verticalsection of my milkcooling apparatus, and Bi g. 2 is a perspective viewof the same.

This invention has relation to means for facilitating the regulation ofthe temperature of milk by the application of heat or cold, as may berequired, and thereby facilitating the formation of cream; and itconsists in the construction and novel arran gement of a waterreservoirsurrounding the milk-pan a hinged panlid having a cock to communicatewith a spout of the reservoir; a vertical compartment at one end of thereservoir connected thereto by a pipe having a stop-cock, and at theother end a vertical series of stop-cocks adapted to let oh the water ofthe reservoir at different levels; also, of the l1eatcr-compartment,extending the length of the bottom of the reservoir, and having its topformed by said bottom, as hereinafter shown and described.

In the accompanying drawings, the letter A designates the exteriorcasing or reservoir of the cooler, which is divided by a vertical wall,a, into two compartments, B B, whereof the former is larger than thelatter and designed to receive the milk-pan, the compartment B being atone end thereof. 0 designates a llot-waterreceptacle, ofsemi-cylindrical form, which extends along the bottom of the casing Aand forms a part thereof, its top wall being formed by the bottom of thereservoir-compartments B B, as shown in the drawings. In this manner thehot-water receptacle is brought into direct contact with the reservoirs.This hot-water receptacle communicates with chamber B through one ormore tubes, D, which may be provided with stop-cocks.

The compartments B B communicate, one with the other, through ahorizontal pipe, b,

connecting their lower portions. This pipe is arranged externally, andis provided with a stop-cock, 1), whereby the water of one compartmentmay be let into or cut oil" from the other when necessary.

At the other end of chamber B it is provided with a vertical series oflet-oit' stop-cocks, c, which are arranged at different levels todetermine the height of water in the chamber and to let oft water at anylevel, according to the temperature required, without removing themilk-pan E.

The end chamber B is provided with a draw-off cock, 0, whereby itscontents, or that of both compartments when the pipe I) is open, may beemptied. This chamber B is also provided with a conduit, f, opening intothe bottom of the hot-water chamber 0, which has a draw-oiicoek, 0,whereby all three chambers may be emptied, if necessary.

The milk-pan E is seated in the reservoir B, and is provided with strongedge flanges 7:, whereby it is supported on the margin of the opening atthe top of this reservoir. This edge flange serves as a convenienthandle for transporting the pan when necessary.

The milk-pan is usually made with walls inclinin g from each other orflaring, so that the space around the pan will increasein the chamber Bwith its depth therein. This circumscribing space is lettered i in thedrawings, and is designed to be filled, or nearly filled, with. water,which is the medium whereby the temperature of the milk in the pan isaffected, as it is in immediate contact with all of the faces of saidpan.

In practice, when the pan E is of large size an educt-ion-pipe, j,eomnulnicating therewith, will extend through the end "all of thechamber B, for the purpose of drawing off the milk after the formationof the cream but in smaller pans this pipe maybe dispensed with. Whenused, the pipe j will be provided with a collar, j, which, being jammedor clamped against the wall of the reservoir by the application of acock, K, upon its screw-threaded end, will form therewith a water-tightjoint.

Gr designates a shallow pan-lid, which is hinged at h either to themargin of the pan or to that of the reservoir, and is provided with aguide lip or flange, 6, extending all around its lower edge, anddesigned to fit snugly against the m. rgin of the pan and form a closejoint therewith. This pan is designed to receive hot or cold Water, andin very warm weather it may contain ice. At the opposite end of thispan-lid from its hinges is placed a stop-cock, 6, whereby its contentsmay be allowed to flow into the reservoineompartment 3 when required,whence it may be distributed or drawn oft into the compartments B and O,as may be required in regulating the temperature of the milk in the panand keeping it uniform.

In order to receive the water from the stopcock of the pan-lid a funnelor spout, n, is arranged near the top of one end of chamber 13, beingsecured to its external wall.

F designates a heating pipe, extending through chamber 0 and designed toheat the water therein when required. In practice, in warm seasons orclimates, this pipe and its reservoir may be dispensed with, as theabstraction of heat from the milk can be effected' and a uniformtemperature reached without it through the use of the pan-lid, endreservoir, and the vertical series of gage-cooks.

The water in the reservoir B about the pan cannot be constantly stirredto mix its warm and cold layers. Hence the cold water is preferably letin from the pan-lid, and, as it becomes heated, the water is withdrawnfrom the top through the upper gage-cocks. Cold water may be also let inat the bottom from the end reservoirB' through the pipe I). Should it befound that the temperature is too low, the bottom water of thereservoirB maybe let into the end compartment 13 or allowed to flow offthrough the lower gagecock.

The natural tendency of the water in the reservoir and of the milk torise in temperature on top is in a great measure counteracted by theinfluence of the cold contents in the pan-lid.

Warm water may be placed in the chamber 13 and cold 'in the pan-lid, andthe contents of these chambers may be respectively communicated to thereservoir B as heat or cold is required, the super-abundance in saidreservoir being let off through a gage-cock at the proper elevationrequired in preserving the uniformity of temperature.

What I claim as my invention, and desire to secure by Letters Patent,is-- The milk-tempering apparatus consisting of the pan E, its hingedpan-lid Gr, having stopcock 1", the reservoir-compartment B about thepan, having at one end the vertical series of cocks c and the spout n,and at the other end the chamber B, separated therefrom by a verticalwall, a, and connected thereto by the ex ternal horizontal bent tube 1)opening into the lower portions of said reservoir and chamber, andhaving a stop-cock, b, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

FRANCIS K. NANA HAN.

Vitnesses: v

M. E. D. BRowN, ALFRED II. (JOLLING.

